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KMID : 1036620170050040991
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Journal of Korean Clinical Health Science
2017 Volume.5 No. 4 p.991 ~ p.997
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Muscle Properties Analysis of SCM Muscle using Smartphone postures
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Kim In-Suk
Kim Kyun-Young
Park Sang-Gwan
Choi Young-Woo
Noh Han-Na
Kim Jin-A
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Abstract
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Purpose: The purpose of this study was to muscle properties analysis of SCM(sternocleidomastoid) Muscle according to posture type when using smartphone.
Methods. This study was conducted on 73 college students who are using smartphone. Subjects were analyzed myotonPRO to confirm, prone posture group, stand posture group, drop head above 45˚in sit posture on a chair group and drop head below 45˚in sit posture on a chair group were measured SCM muscle. The myotonPRO were measured one measurer, total 3 times. Comparative analysis of the each groups were investigated of SCM muscle properties.
Results. We found that Frequency, Stiffness, Creep and Relaxation were appeared difference in each posture. F index was increased at drop head below 45˚group than stand posture group. S index was increased at drop head above 45˚group than prone posture group. C index was decreased at drop head below 45˚group and drop head above 45˚group than prone posture group. R index was decreased at drop head above 45˚group than prone posture group.
Conclusions. The muscle properties were appeared difference in each posture of SCM muscle using smartphone.
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KEYWORD
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Sternocleidomastoid muscle(SCM muscle), Smartphone, Posture
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